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Chalcophyllite

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CHP876644

Chalcophyllite

Classic Locality

Description Tabs

Description
Locality: 
Majuba Hill Mine, Antelope, Pershing County, Nevada, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.1 × 0.9 × 0.4 cm
Description

specimen with some very nice exagonal tabular sky-blue-greenish crystals of chalcophyllite on matrix.

c. 2973

Mineral Data
What's on the rock

Chalcophyllite

Formula: 
Cu18Al2(SO4)3(AsO4)3(OH)27·33H2O
Strunz: 
8.DF.30
Crystal System: 
Trigonal
Hardness: 
2.0

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